機器分析実験,研究室セミナー,先週の輪読

鈴木義人先生と長谷川が担当している食生命科学科 3 年生向けの学生実験「機器分析実験」は先週の火曜日(7/16)で終了しました.今年度は 7/17(水)から期末試験が始まるため,日程に余裕がなく,装置トラブルなどがあると困った事態になるところでしたが,特にトラブルもなく無事に終了できました.

先週の研究室セミナーの文献紹介の担当は化学生態学研究室の四年生で,以下の論文を報告しました.
Kosakivska, I., Voytenko, L., Vasyuk, V., and Shcherbatiuk, M. (2024). ABA-induced alterations in cytokinin homeostasis of Triticum aestivum and Triticum spelta under heat stress. Plant Stress 11: 100353.

先週の輪読では下記の論文を取り上げました.
2427. Song, L. et al. (2023). Reducing brassinosteroid signalling enhances grain yield in semi-dwarf wheat. Nature 617: 118–124.
2428. Berman, P. et al. (2023). Parallel evolution of cannabinoid biosynthesis. Nat. Plants 9: 817–831.
2429. Aryal, B. et al. (2023). An LRR receptor kinase controls ABC transporter substrate preferences during plant growth-defense decisions. Curr. Biol. 33: 2008–2023.e8.
2430. Castro, C. et al. (2023). Priming grapevine with lipopolysaccharide confers systemic resistance to Pierce’s disease and identifies a peroxidase linked to defense priming. New Phytol. 239: 687–704.

研究室セミナー & 先週の輪読

先週の研究室セミナーの文献紹介の担当は生物制御化学研究室の四年生で,以下の論文を報告しました.
Mashiguchi, K. et al. (2023). Activation of strigolactone biosynthesis by the DWARF14-LIKE/KARRIKIN-INSENSITIVE2 pathway in mycorrhizal angiosperms, but not in arabidopsis, a non-mycorrhizal plant. Plant Cell Physiol. 64: 1066–1078.

先週の輪読では下記の論文を取り上げました.

2422. El Houari, I. et al. (2023). Non-specific effects of the CINNAMATE-4-HYDROXYLASE inhibitor piperonylic acid. Plant J. 115: 470–479.
2423. Wu, H.-T., Riggs, D.L., Lyon, Y.A., and Julian, R.R. (2023). Statistical framework for identifying differences in similar mass spectra: expanding possibilities for isomer identification. Anal. Chem. 95: 6996–7005.
2424. Xu, D. et al. (2023). Export of defensive glucosinolates is key for their accumulation in seeds. Nature 617: 132–138.
2425. Song, W., Yin, Z., Lu, X., Shen, D., and Dou, D. (2023). Plant secondary metabolite citral interferes with Phytophthora capsici virulence by manipulating the expression of effector genes. Mol. Plant Pathol. 24: 932–946.
2426. Saito, R. et al. (2023). (3R,7S)-12-Hydroxy-jasmonoyl-l-isoleucine is the genuine bioactive stereoisomer of a jasmonate metabolite in Arabidopsis thaliana. Plant J. 115: 709–723.

機器分析実験,研究室セミナー,今週の輪読

7/4(木)から化学生態学研究室の鈴木義人先生と私が担当している食生命科学科 3 年生向けの学生実験「機器分析実験」が始まりました.7/16(火)までの日程です.

今週の研究室セミナーの文献紹介の担当は生物制御化学研究室の四年生で,以下の論文を報告しました.
Escaray, F.J. et al. (2024). Plant triterpenoid saponins function as susceptibility factors to promote the pathogenicity of Botrytis cinerea. Mol. Plant 17: 1073–1089.

今週の輪読では下記の論文を取り上げました.
2418. Tetorya, M. et al. (2023). Plant defensin MtDef4-derived antifungal peptide with multiple modes of action and potential as a bio-inspired fungicide. Mol. Plant Pathol. 24: 896–913.
2419. Newman, T.E. et al. (2023). The broad host range pathogen Sclerotinia sclerotiorum produces multiple effector proteins that induce host cell death intracellularly. Mol. Plant Pathol. 24: 866–881.
2420. Li, G. et al. (2023). Integrated microbiome and metabolomic analysis reveal responses of rhizosphere bacterial communities and root exudate composition to drought and genotype in rice (Oryza sativa L.). Rice 16: 19.
2421. Latorre, S.M. et al. (2023). Genomic surveillance uncovers a pandemic clonal lineage of the wheat blast fungus. PLOS Biol. 21: e3002052.

研究室セミナー & 今週の輪読

今週の研究室セミナーの文献紹介の担当は生物制御化学研究室の四年生で,以下の論文を報告しました.
Jia, X. et al. (2023). The origin and evolution of salicylic acid signaling and biosynthesis in plants. Mol. Plant 16: 245–259.

今週の輪読では下記の論文を取り上げました.

2414. Alariqi, M. et al. (2023). Cotton 4-coumarate-CoA ligase 3 enhanced plant resistance to Verticillium dahliae by promoting jasmonic acid signaling-mediated vascular lignification and metabolic flux. Plant J. 115: 190–204.
2415. Chen, M. et al. (2023). A parasitic fungus employs mutated eIF4A to survive on rocaglate-synthesizing Aglaia plants. eLife 12: e81302.
2416. Zhang, J. et al. (2023). Transcriptomic and proteomic analysis reveals (E)-2-hexenal modulates tomato resistance against Botrytis cinerea by regulating plant defense mechanism. Plant Mol. Biol. 111: 505–522.
2417. Cao, Y. et al. (2023). Drug delivery in plants using silk microneedles. Adv. Mater. 35: 2205794.

研究室セミナー & 今週の輪読

今週の研究室セミナーの文献紹介の担当は化学生態学研究室の四年生で,以下の論文を報告しました.
Shen, L., Zhang, L.-h., Xia, X., Yang, S.-x., and Yang, X. (2024). Cytochrome P450 SmCYP78A7a positively functions in eggplant response to salt stress via forming a positive feedback loop with SmWRKY11. Int. J. Biol. Macromol. 269: 132139.

今週の輪読では下記の論文を取り上げました.

2409. Sugihara, Y. et al. (2023). Disentangling the complex gene interaction networks between rice and the blast fungus identifies a new pathogen effector. PLOS Biol. 21: e3001945.
2410. Murphy, K.M. et al. (2023). A dolabralexin-deficient mutant provides insight into specialized diterpenoid metabolism in maize. Plant Physiol. 192: 1338–1358.
2411. Lee, S. et al. (2023). The nuclear effector MoHTR3 of Magnaporthe oryzae modulates host defence signalling in the biotrophic stage of rice infection. Mol. Plant Pathol. 24: 602–615.
2412. Saito, S. et al. (2023). Metabolic engineering of betacyanin in vegetables for anti-inflammatory therapy. Biotechnol. Bioeng. 120: 1357–1365.
2413. Ishibashi, M. et al. (2023). High-throughput analysis of anthocyanins in horticultural crops using probe electrospray ionization tandem mass spectrometry (PESI/MS/MS). Hortic. Res. 10: uhad039.

研究室セミナー & 5/29-6/14 の輪読

5/30 の研究室セミナーの文献紹介の担当は化学生態学研究室の修士課程学生で,以下の論文を報告しました.
Lv, H. et al. (2023). Overcoming resistance in insect pest with a nanoparticle-mediated dsRNA and insecticide co-delivery system. Chem. Eng. J. 475: 146239.

6/6 の研究室セミナーの文献紹介の担当は化学生態学研究室の修士課程学生で,以下の論文を報告しました.
Mei, G. et al. (2024). A simple and efficient in planta transformation method based on the active regeneration capacity of plants. Plant Commun. 5: 100822.

6/13 の研究室セミナーの文献紹介の担当は生物制御化学研究室の四年生で,以下の論文を報告しました.
Duan, Y. et al. (2023). Combination of bacterial N-acyl homoserine lactones primes Arabidopsis defenses via jasmonate metabolism. Plant Physiol. 191: 2027–2044.

5/29-6/14 の輪読では下記の論文を取り上げました.
2398. Miwa, T., Ishikawa, O., Takeda-Kimura, Y., and Toyomasu, T. Essential residues in diterpene synthases for biosynthesis of oryzalexins A-F in rice phytoalexin. FEBS J. in press.
2399. Niñoles, R. et al. (2023). Kaempferol-3-rhamnoside overaccumulation in flavonoid 3′-hydroxylase tt7 mutants compromises seed coat outer integument differentiation and seed longevity. New Phytol. 238: 1461–1478.
2400. Song, S. et al. (2023). The functional evolution of architecturally different plant geranyl diphosphate synthases from geranylgeranyl diphosphate synthase. Plant Cell 35: 2293–2315.
2401. Feng, Y., Weers, T., and Peters, R.J. Double-barreled defense: dual ent-miltiradiene synthases in most rice cultivars. aBIOTECH in press.
2402. Tu, C.-K. et al. (2024). The rice endophytic bacterium Bacillus velezensis LS123N provides protection against multiple pathogens and enhances rice resistance to wind with increase in yield. Biol. Control 192: 105507.
2403. Qiu, X. et al. (2023). The Phytophthora sojae nuclear effector PsAvh110 targets a host transcriptional complex to modulate plant immunity. Plant Cell 35: 574–597.
2404. Brunoni, F. et al. (2023). Amino acid conjugation of oxIAA is a secondary metabolic regulation involved in auxin homeostasis. New Phytol. 238: 2264–2270.
2405. Teng, Y. et al. (2024). Genome-wide identification and expression analysis of ent-kaurene synthase-like gene family associated with abiotic stress in rice. Int. J. Mol. Sci. 25: 5513.
2406. Miyata, K. et al. (2023). OsSYMRK plays an essential role in AM symbiosis in rice (Oryza sativa). Plant Cell Physiol. 64: 378–391.
2407. Chini, A., Monte, I., Zamarreño, A.M., García-Mina, J.M., and Solano, R. (2023). Evolution of the jasmonate ligands and their biosynthetic pathways. New Phytol. 238: 2236–2246.
2408. Reed, J. et al. (2023). Elucidation of the pathway for biosynthesis of saponin adjuvants from the soapbark tree. Science 379: 1252–1264.

研究室セミナー & 今週の輪読

今週の研究室セミナーの文献紹介の担当は生物制御化学研究室の修士課程学生で,以下の論文を報告しました.
Mauger, A. et al. (2023). Collective total synthesis of mavacuran alkaloids through intermolecular 1,4-addition of an organolithium reagent. Angew. Chem. Int. Ed. 62: e202302461.

今週の輪読では下記の論文を取り上げました.

2393. Zhang, Y. et al. (2024). Single-repeat MYB transcription factor, OsMYB1R, enhanced phytoalexin sakuranetin accumulation and Magnaporthe oryzae resistance. Curr. Plant Biol. 38: 100351.
2394. Hurst, C.H. et al. (2023). S-acylation stabilizes ligand-induced receptor kinase complex formation during plant pattern-triggered immune signaling. Curr. Biol. 33: 1588–1596.e6.
2395. Lin, J.-L. et al. (2023). Dirigent gene editing of gossypol enantiomers for toxicity-depleted cotton seeds. Nat. Plants 9: 605–615.
2396. Duan, Y. et al. (2023). Combination of bacterial N-acyl homoserine lactones primes Arabidopsis defenses via jasmonate metabolism. Plant Physiol. 191: 2027–2044.
2397. Hellens, A.M., Chabikwa, T.G., Fichtner, F., Brewer, P.B., and Beveridge, C.A. (2023). Identification of new potential downstream transcriptional targets of the strigolactone pathway including glucosinolate biosynthesis. Plant Direct 7: e486.

研究室セミナー & 4/22-5/17 の輪読

先週から生物制御化学研究室と化学生態学研究室の合同セミナーで文献紹介が始まりました.先週の担当は化学生態学研究室の修士課程学生で,以下の論文を報告しました.
Soma, F. et al. (2023). Constitutively active B2 Raf-like kinases are required for drought-responsive gene expression upstream of ABA-activated SnRK2 kinases. Proc. Natl. Acad. Sci. U. S. A. 120: e2221863120.

4/22-5/17 の輪読では下記の論文を取り上げました.
2378. Wang, X. et al. (2023). Functional dissection of rice jasmonate receptors involved in development and defense. New Phytol. 238: 2144–2158.
2379. Saldivar, E.V. et al. (2023). Maize terpene synthase 8 (ZmTPS8) contributes to a complex blend of fungal-elicited antibiotics. Plants 12: 1111.
2380. Kinto, S., Akino, T., and Yano, S. (2023). Spider mites avoid caterpillar traces to prevent intraguild predation. Sci Rep. 13: 1841.
2381. Wang, S. et al. (2023). Phosphorylation and ubiquitination of OsWRKY31 are integral to OsMKK10-2-mediated defense responses in rice. Plant Cell 35: 2391–2412.
2382. Takemura, H. et al. (2023). Role of hypoxanthine-guanine phosphoribosyltransferase in the metabolism of fairy chemicals in rice. Org. Biomol. Chem. 21: 2556–2561.
2383. You, Y., Ray, R., Halitschke, R., Baldwin, G., and Baldwin, I.T. (2023). Arbuscular mycorrhizal fungi-indicative blumenol-C-glucosides predict lipid accumulations and fitness in plants grown without competitors. New Phytol. 238: 2159–2174.
2384. Guerrero De León, E., Sánchez-Martínez, H., Morán-Pinzón, J.A., del Olmo Fernández, E., and López-Pérez, J.L. (2023). Computational structural revision of elaeophorbate and other triterpenoids with the help of NAPROC-13. a new strategy for structural revision of natural products. J. Nat. Prod. 86: 897–908.
2385. Magner, E.T. et al. (2023). Post-secretory synthesis of a natural analog of iron-gall ink in the black nectar of Melianthus spp. New Phytol. 239: 2026–2040.
2386. Jiang, L. et al. (2024). Phytoalexin sakuranetin attenuates endocytosis and enhances resistance to rice blast. Nat. Commun. 15: 3437.
2387. Hua, J., Liu, J., Zhou, W., Ma, C., and Luo, S. (2023). A new perspective on plant defense against foliar gall-forming aphids through activation of the fruit abscission pathway. Plant Physiol. Biochem. 196: 1046–1054.
2388. Pankaew, C. et al. (2023). Combining elicitor treatment of chitosan, methyl jasmonate, and cyclodextrin to induce the generation of immune response bioactive peptides in peanut hairy root culture. Plant Sci. 331: 111670.
2389. Sun, G. et al. (2023). Apocarotenoids are allosteric effectors of a dimeric plant glycosyltransferase involved in defense and lignin formation. New Phytol. 238: 2080–2098.
2390. Mei, S. et al. (2023). Auxin contributes to jasmonate-mediated regulation of abscisic acid signaling during seed germination in Arabidopsis. Plant Cell 35: 1110–1133.
2391. Singh, S.K. et al. (2023). The nuclear effector ArPEC25 from the necrotrophic fungus Ascochyta rabiei targets the chickpea transcription factor CaβLIM1a and negatively modulates lignin biosynthesis, increasing host susceptibility. Plant Cell 35: 1134–1159.
2392. Huang, J. et al. (2023). Hormone and carbohydrate regulation of defense secondary metabolites in a Mediterranean forest during drought. Environ. Exp. Bot. 209: 105298.

11/27〜12/22の研究室セミナー & 輪読

またしばらくブログ更新をサボってました.

12/1
の研究室セミナーは化学生態学研究室 4 年生が下記の論文を紹介しました.
Gu, X. et al. (2023). A rapidly spreading deleterious aphid endosymbiont that uses horizontal as well as vertical transmission. Proc. Natl. Acad. Sci. U. S. A. 120: e2217278120.

12/8
の研究室セミナーは化学生態学研究室 4 年生が下記の論文を紹介しました.
Sato, A. et al. (2022). Indole-3-pyruvic acid regulates TAA1 activity, which plays a key role in coordinating the two steps of auxin biosynthesis. Proc. Natl. Acad. Sci. U. S. A. 119: e2203633119.

12/15
の研究室セミナーは化学生態学研究室 4 年生が下記の論文を紹介しました.
Xu, H.-X. et al. (2019). A salivary effector enables whitefly to feed on host plants by eliciting salicylic acid-signaling pathway. Proc. Natl. Acad. Sci. U. S. A. 116: 490–495.

12/22
の研究室セミナーは化学生態学研究室 4 年生が下記の論文を紹介しました.
Suzuki, H., Kato, H., Iwano, M., Nishihama, R., and Kohchi, T. (2023). Auxin signaling is essential for organogenesis but not for cell survival in the liverwort Marchantia polymorpha. The Plant Cell 35: 1058–1075.

11/27
12/22 の輪読では下記の論文を取り上げました.
2289. Yue, Y., Bao, X., Jiang, J., and Li, J. (2022). Evaluation and correction of injection order effects in LC-MS/MS based targeted metabolomics. J. Chromatogr. B 1212: 123513.
2290. van Dijk, L.J.A., Abdelfattah, A., Ehrlén, J., and Tack, A.J.M. (2022). Soil microbiomes drive aboveground plant–pathogen–insect interactions. Oikos 2022: e09366.
2291. Khattab, I.M., Fischer, J., Kaźmierczak, A., Thines, E., and Nick, P. (2023). Ferulic acid is a putative surrender signal to stimulate programmed cell death in grapevines after infection with Neofusicoccum parvum. Plant Cell Environ. 46: 339–358.
2292. Wang, C.-Y., Li, L.-L., Meiners, S.J., and Kong, C.-H. (2023). Root placement patterns in allelopathic plant–plant interactions. New Phytol. 237: 563–575.
2293. Nguyen-Ngoc, H. et al. (2023). Insight into the role of phytoalexin naringenin and phytohormone abscisic acid in defense against phytopathogens Phytophthora infestans and Magnaporthe oryzae: In vitro and in silico approaches. Physiol. Mol. Plant Pathol. 127: 102123.
2294. Shimada, T. et al. (2024). Characterization of diterpene synthase genes in Brachypodium distachyon, a monocotyledonous model plant, provides evolutionary insight into their multiple homologs in cereals. Biosci. Biotechnol. Biochem. 88: 8–15.
2295. Ji, W., Mandal, S., Rezenom, Y.H., and McKnight, T.D. (2023). Specialized metabolism by trichome-enriched Rubisco and fatty acid synthase components. Plant Physiol. 191: 1199–1213.
2296. Rawat, A.A. et al. (2023). OXIDATIVE SIGNAL-INDUCIBLE1 induces immunity by coordinating N-hydroxypipecolic acid, salicylic acid, and camalexin synthesis. New Phytol. 237: 1285–1301.
2297. Fu, J. et al. (2023). ZmEREB92 interacts with ZmMYC2 to activate maize terpenoid phytoalexin biosynthesis upon Fusarium graminearum infection through jasmonic acid/ethylene signaling. New Phytol. 237: 1302–1319.
2298. Qi, F. et al. (2022). Microbial production of the plant-derived fungicide physcion. Metab. Eng. 74: 130–138.
2299. Li, Z.-X. et al. (2023). Widely targeted metabolomics analysis reveals the effect of exogenous auxin on postharvest resistance to Botrytis cinerea in kiwifruit (Actinidia chinensis L.). Postharvest Biol. Technol. 195: 112129.
2300. Daware, A. et al. (2023). Rice Pangenome Genotyping Array: an efficient genotyping solution for pangenome-based accelerated genetic improvement in rice. Plant J. 113: 26–46.
2301. Nie, Y. et al. (2022). A novel elicitor MoVcpo is necessary for the virulence of Magnaporthe oryzae and triggers rice defense responses. Front. Plant Sci. 13: 1018616.
2302. Suzuki, R. et al. (2022). Local auxin synthesis mediated by YUCCA4 induced during root-knot nematode infection positively regulates gall growth and nematode development. Front. Plant Sci. 13: 1019427.
2303. Li, R. et al. (2023). Melatonin functions as a broad-spectrum antifungal by targeting a conserved pathogen protein kinase. J. Pineal Res. 74: e12839.
2304. Pan, X. et al. (2022). Discovery, structure, and mechanism of a class II sesquiterpene cyclase. J. Am. Chem. Soc. 144: 22067–22074.
2305. Pacheco-Hernández, Y., Villa-Ruano, N., Cruz-Duran, R., Becerra-Martínez, E., and Lozoya-Gloria, E. (2022). 1H-NMR metabolomics profiling and volatile content of ‘Hoja Santa’ (Piper auritum Kunth): a millenary edible plant consumed in Mexico. Chem. Biodiversity 19: e202200667.
2306. Poveda, J., Abril-Urías, P., Muñoz-Acero, J., and Nicolás, C. (2022). A potential role of salicylic acid in the evolutionary behavior of Trichoderma as a plant pathogen: from Marchantia polymorpha to Arabidopsis thaliana. Planta 257: 6.
2307. Wang, K. et al. (2023). E3 ubiquitin ligase OsPIE3 destabilises the B-lectin receptor-like kinase PID2 to control blast disease resistance in rice. New Phytol. 237: 1826–1842.
2308. Li, L.-L., Li, Z., Lou, Y., Meiners, S.J., and Kong, C.-H. (2023). (−)-Loliolide is a general signal of plant stress that activates jasmonate-related responses. New Phytol. 238: 2099–2112.

研究室セミナー & 今週の輪読

今週の研究室セミナーの文献紹介では,生物制御化学研究室の四年生が下記の論文を紹介しました.
Zheng, K., and Hong, R. (2021). Total synthesis of LC-KA05, the proposed structure of LC-KA05-2, and 2,18-seco-lankacidinol B: A quest to revisit lankacidin biosynthesis. Tetrahedron 88: 132141.

今週の輪読では下記の論文を取り上げました.

2285. Afifi, O.A. et al. (2022). Genome-edited rice deficient in two 4-COUMARATE:COENZYME A LIGASE genes displays diverse lignin alterations. Plant Physiol. 190: 2155–2172.
2286. Jeblick, T. et al. (2023). Botrytis hypersensitive response inducing protein 1 triggers noncanonical PTI to induce plant cell death. Plant Physiol. 191: 125–141.
2287. Yimer, H.Z. et al. (2023). Root-knot nematodes produce functional mimics of tyrosine-sulfated plant peptides. Proc. Natl. Acad. Sci. U. S. A. 120: e2304612120.
2288. Yao, C. et al. (2023). Stemborer-induced rice plant volatiles boost direct and indirect resistance in neighboring plants. New Phytol. 237: 2375–2387.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室修士 2 年生が下記の論文を紹介しました.
Tao, H. et al. (2022). Discovery of non-squalene triterpenes. Nature 606: 414–419.

今週の輪読では下記の論文を取り上げました.

2120. Yan, C. et al. Alfin-like transcription factor VqAL4 regulates a stilbene synthase to enhance powdery mildew resistance in grapevine. Mol. Plant Pathol. in press.
2121. De la Concepcion, J.C. et al. (2022). A blast fungus zinc-finger fold effector binds to a hydrophobic pocket in host Exo70 proteins to modulate immune recognition in rice. Proc. Natl. Acad. Sci. U. S. A. 119: e2210559119.
2122. Hildreth, S.B. et al. (2022). Mutations that alter Arabidopsis flavonoid metabolism affect the circadian clock. Plant J. 110: 932–945.
2123. Wu, J. et al. (2022). Rice defense against brown planthopper partially by suppressing the expression of transferrin family genes of brown planthopper. J. Agric. Food Chem. 70: 2839–2850.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室 4 年生が下記の論文を紹介しました.
Fandino, R.A. et al. (2019). Mutagenesis of odorant coreceptor Orco fully disrupts foraging but not oviposition behaviors in the hawkmoth Manduca sexta. Proc. Natl. Acad. Sci. U. S. A. 116: 15677–15685.

今週の輪読では下記の論文を取り上げました.

2113. Zhang, J., Li, Y., Bao, Q., Wang, H., and Hou, S. (2022). Plant elicitor peptide 1 fortifies root cell walls and triggers a systemic root-to-shoot immune signaling in Arabidopsis. Plant Signaling Behav. 17: 2034270.
2114. Ihara, Y. et al. (2022). Developing a platform for production of the oxylipin KODA in plants. J. Exp. Bot. 73: 3044–3052.
2115. Anh, L.H. et al. (2022). Cytotoxic mechanism of momilactones A and B against acute promyelocytic leukemia and multiple myeloma cell lines. Cancers 14: 4848.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは生物制御化学研究室 4 年生が下記の論文を紹介しました.
Son, H.-U. et al. (2019). Effects of synergistic Inhibition on α-glucosidase by phytoalexins in soybeans. Biomolecules 9: 828.

今週の輪読では下記の論文を取り上げました.

2105. Todesco, M. et al. (2022). Genetic basis and dual adaptive role of floral pigmentation in sunflowers. eLife 11: e72072.
2106. Dani, K.G.S. et al. (2022). Isoprene enhances leaf cytokinin metabolism and induces early senescence. New Phytol. 234: 961–974.
2107. Bai, Y. et al. (2022). Natural history–guided omics reveals plant defensive chemistry against leafhopper pests. Science 375: eabm2948.
2108. Fiorilli, V. et al. (2022). A structural homologue of the plant receptor D14 mediates responses to strigolactones in the fungal phytopathogen Cryphonectria parasitica. New Phytol. 234: 1003–1017.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室 4 年生が下記の論文を紹介しました.
Hsu, P.-K. et al. (2021). Raf-like kinases and receptor-like (pseudo)kinase GHR1 are required for stomatal vapor pressure difference response. Proc. Natl. Acad. Sci. U. S. A. 118: e2107280118.

今週の輪読は都合により一回しか行えず,下記の論文を取り上げました.

2104. Kaur, S., Campbell, B.J., and Suseela, V. (2022). Root metabolome of plant–arbuscular mycorrhizal symbiosis mirrors the mutualistic or parasitic mycorrhizal phenotype. New Phytol. 234: 672–687.

研究室セミナー & 先週の輪読

先週の研究室セミナーでは化学生態学研究室 4 年生が下記の論文を紹介しました.
Figueiredo, M.R.A.D. et al. (2022). An in-frame deletion mutation in the degron tail of auxin coreceptor IAA2 confers resistance to the herbicide 2,4-D in Sisymbrium orientale. Proc. Natl. Acad. Sci. U. S. A. 119: e2105819119.

先週の輪読では下記の論文を取り上げました.

2101. Brambilla, A. et al. (2022). Immunity-associated volatile emissions of β-ionone and nonanal propagate defence responses in neighbouring barley plants. J. Exp. Bot. 73: 615–630.
2102. Sobolev, V.S. et al. (2022). Transformation of major peanut (Arachis hypogaea) stilbenoid phytoalexins caused by selected microorganisms. J. Agric. Food Chem. 70: 1101–1110.
2103. Shirasawa, K., Esumi, T., Itai, A., and Isobe, S. (2022). Cherry blossom forecast based on transcriptome of floral organs approaching blooming in the flowering cherry (Cerasus × yedoensis) cultivar ‘Somei-Yoshino’. Front. Plant Sci. 13: 802203.

鍬耕祭,研究室セミナー,今週の輪読

10/22, 23 には茨城大学農学部の学園祭である鍬耕祭が 3 年ぶりに開催されました.新型コロナウイルス感染症の影響で二年間開催できなかったため,今回の開催はかなり大変だったと思いますが,実行委員をはじめとした学生たちの頑張りのおかげでなかなか盛況であったようです.秋のミニミニオープンキャンパスとして学部説明会や模擬授業も行われ,長谷川は広報委員長として学部説明を担当しました.鍬耕祭の様子は茨大広報学生プロジェクトの記事がこちらに掲載されています.

今週の研究室セミナーでは化学生態学研究室 4 年生が下記の論文を紹介しました.
Zheng, Y. et al. (2021). Auxin guides germ-cell specification in Arabidopsis anthers. Proc. Natl. Acad. Sci. U. S. A. 118: e2101492118.

今週の輪読では下記の論文を取り上げました.

2097. Yin, X. et al. (2022). Cinnamoyl CoA: NADP oxidoreductase-like 1 regulates abscisic acid response by modulating phaseic acid homeostasis in Arabidopsis thaliana. J. Exp. Bot. 73: 860–872.
2098. Qian, B. et al. (2022). MoErv29 promotes apoplastic effector secretion contributing to virulence of the rice blast fungus Magnaporthe oryzae. New Phytol. 233: 1289–1302.
2099. Ampt, E.A. et al. (2022). Plant neighbours can make or break the disease transmission chain of a fungal root pathogen. New Phytol. 233: 1303–1316.
2100. Zhai, K. et al. (2022). NLRs guard metabolism to coordinate pattern- and effector-triggered immunity. Nature 601: 245–251.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室修士 2 年生が下記の論文を紹介しました.
Sato, Y. et al. (2021). Insecticide resistance by a host-symbiont reciprocal detoxification. Nat. Commun. 12: 6432.

今週の輪読では下記の論文を取り上げました.

2093. Sun, H., Zuo, X., Zhang, Q., Gao, J., and Kai, G. (2022). Elicitation of (E)-2-hexenal and 2,3-butanediol on the bioactive compounds in adventitious roots of Astragalus membranaceus var. mongholicus. J. Agric. Food Chem. 70: 470–479.
2094. Wang, C. et al. (2022). Identifying key metabolites associated with glucosinolate biosynthesis in response to nitrogen management strategies in two rapeseed (Brassica napus) varieties. J. Agric. Food Chem. 70: 634–645.
2095. Zhang, L.-L. et al. (2022). Osa-miR535 targets SQUAMOSA promoter binding protein-like 4 to regulate blast disease resistance in rice. Plant J. 110: 166–178.
2096. Panda, S. et al. (2022). Steroidal alkaloids defence metabolism and plant growth are modulated by the joint action of gibberellin and jasmonate signalling. New Phytol. 233: 1220–1237.

研究室セミナー & 今週の輪読

今週から研究室セミナーでの文献紹介が始まりました.今週は生物制御化学研究室修士 2 年生が下記の論文を紹介しました.
Charoenpattarapreeda, J., Walsh, S.J., Carroll, J.S., and Spring, D.R. (2020). Expeditious total synthesis of hemiasterlin through a convergent multicomponent strategy and its use in targeted cancer therapeutics. Angew. Chem. Int. Ed. 59: 23045–23050.

今週の輪読では下記の論文を取り上げました.

2090. Yang, W. et al. (2022). Degraded metabolites of phlorizin promote germination of Valsa mali var. mali in its host Malus spp. J. Agric. Food Chem. 70: 149–156.
2091. König, S. et al. (2022). Sphingolipid-induced programmed cell death is a salicylic acid and EDS1-dependent phenotype in Arabidopsis Fatty Acid Hydroxylase (Fah1, Fah2) and Ceramide Synthase (Loh2) triple mutants. Plant Cell Physiol. 63: 317–325.
2092. Guzman, A.L., and Hoye, T.R. (2022). TMS is superior to residual CHCl3 for use as the internal reference for routine 1H NMR spectra recorded in CDCl3. J. Org. Chem. 87: 905–909.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室修士 2 年生の学生が下記の論文を紹介しました.研究室セミナーはこれで一旦夏休みになります.
Xia, J. et al. (2021). Whitefly hijacks a plant detoxification gene that neutralizes plant toxins. Cell 184: 1693–1705.e17.

今週の輪読では下記の論文を取り上げました.
2055. Liu, C. et al. (2022). Nicotiana benthamiana asparagine synthetase associates with IP-L and confers resistance against tobacco mosaic virus via the asparagine-induced salicylic acid signalling pathway. Mol. Plant Pathol. 23: 60–77.
2056. Zheng, Y. et al. (2022). SDR7-6, a short-chain alcohol dehydrogenase/reductase family protein, regulates light-dependent cell death and defence responses in rice. Mol. Plant Pathol. 23: 78–91.
2057. Mertens, D. et al. (2021). Plant defence to sequential attack is adapted to prevalent herbivores. Nat. Plants 7: 1347–1353.
2058. Fu, W. et al. (2022). The jasmonic acid-amino acid conjugates JA-Val and JA-Leu are involved in rice resistance to herbivores. Plant Cell Environ. 45: 262–272.

オープンキャンパス,研究室セミナー,先週の輪読

7/23(土)には茨城大学オープンキャンパスが開催されました.阿見キャンパス会場にも多くの高校生や保護者の皆さんが来訪されました.過去 2 年間は新型コロナウイルス感染症の影響で,来場型のオープンキャンパスを開催することができませんでしたが,今年度は感染拡大の中ではありましたが,なんとか開催することができました.長谷川は農学部広報委員長という立場でしたので,学部全体に関わる業務を担当していましたが,研究室公開は戸嶋先生と研究室の学生さんに担当してもらって,30 名程度の訪問があったようです.

先週の研究室セミナーでは化学生態学研究室 4 年生の学生が下記の論文を紹介しました.
Zhou, Y., Park, S.-H., Soh, M.Y., and Chua, N.-H. (2021). Ubiquitin-specific proteases UBP12 and UBP13 promote shade avoidance response by enhancing PIF7 stability. Proc. Natl. Acad. Sci. U. S. A. 118: e2103633118.

先週の輪読では下記の論文を取り上げました.
2052. Ding, Y. et al. (2021). Adaptive defence and sensing responses of host plant roots to fungal pathogen attack revealed by transcriptome and metabolome analyses. Plant Cell Environ. 44: 3756–3774.
2053. Tzipilevich, E., Russ, D., Dangl, J.L., and Benfey, P.N. (2021). Plant immune system activation is necessary for efficient root colonization by auxin-secreting beneficial bacteria. Cell Host Microbe 29: 1507–1520.e4.
2054. Nißler, R. et al. (2022). Detection and imaging of the plant pathogen response by near-infrared fluorescent polyphenol sensors. Angew. Chem. Int. Ed. 61: e202108373.

研究室セミナー & 先週の輪読

先週の研究室セミナーでは生物制御化学研究室 4 年生の学生が下記の論文を紹介しました.
Förster, C. et al. (2022). Biosynthesis and antifungal activity of fungus-induced O-methylated flavonoids in maize. Plant Physiol. 188: 167–190.

先週の輪読では下記の論文を取り上げました.

2048. Ge, T. et al. (2021). 4-Ethylphenol, a volatile organic compound produced by disease-resistant soybean, is a potential botanical agrochemical against oomycetes. Front. Plant Sci. 12: 717258.
2049. Tian, P. et al. (2021). Transcriptomics analysis of genes induced by melatonin related to glucosinolates synthesis in broccoli hairy roots. Plant Signaling Behav. 16: 1952742.
2050. Poretsky, E. et al. (2021). Comparative analyses of responses to exogenous and endogenous antiherbivore elicitors enable a forward genetics approach to identify maize gene candidates mediating sensitivity to herbivore-associated molecular patterns. Plant J. 108: 1295–1316.
2051. Wu, D. et al. Lateral transfers lead to the birth of momilactone biosynthetic gene clusters in grass. Plant J. in press.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室 4 年生の学生が下記の論文を紹介しました.
Schellenberger, R. et al. (2021). Bacterial rhamnolipids and their 3-hydroxyalkanoate precursors activate Arabidopsis innate immunity through two independent mechanisms. Proc. Natl. Acad. Sci. U. S. A. 118: e2101366118.

今週の輪読では下記の論文を取り上げました.

2044. Jing, T. et al. (2021). Herbivore-induced volatiles influence moth preference by increasing the β-ocimene emission of neighbouring tea plants. Plant Cell Environ. 44: 3667–3680.
2045. Pruitt, R.N. et al. (2021). The EDS1–PAD4–ADR1 node mediates Arabidopsis pattern-triggered immunity. Nature 598: 495–499.
2046. Desmedt, W. et al. (2022). Rice diterpenoid phytoalexins are involved in defence against parasitic nematodes and shape rhizosphere nematode communities. New Phytol. 235: 1231–1245.
2047. Tian, H. et al. (2021). Activation of TIR signalling boosts pattern-triggered immunity. Nature 598: 500–503.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室 4 年生の学生が下記の論文を紹介しました.
Wolinska, K.W. et al. (2021). Tryptophan metabolism and bacterial commensals prevent fungal dysbiosis in Arabidopsis roots. Proc. Natl. Acad. Sci. U. S. A. 118: e2111521118.

今週の輪読では下記の論文を取り上げました.
2041. Wang, R. et al. (2022). Algal p-coumaric acid induces oxidative stress and siderophore biosynthesis in the bacterial symbiont Phaeobacter inhibens. Cell Cheml. Biol. 29: 670–679.e5.
2042. Liu, X. et al. (2021). Rice ubiquitin-conjugating enzyme OsUBC26 is essential for immunity to the blast fungus Magnaporthe oryzae. Mol. Plant Pathol. 22: 1613–1623.
2043. Ma, T. et al. (2021). Plant defense compound triggers mycotoxin synthesis by regulating H2B ub1 and H3K4 me2/3 deposition. New Phytol. 232: 2106–2123.

研究室セミナー & 先週の輪読

先週の研究室セミナーでは化学生態学研究室 4 年生の学生が下記の論文を紹介しました.
Gysel, K. et al. (2021). Kinetic proofreading of lipochitooligosaccharides determines signal activation of symbiotic plant receptors. Proc. Natl. Acad. Sci. U. S. A. 118: e2111031118.

先週の輪読では下記の論文を取り上げました.

2038. Kim, L.J. et al. (2021). Prospecting for natural products by genome mining and microcrystal electron diffraction. Nat. Chem. Biol. 17: 872–877.
2039. Tang, Y. et al. (2021). Tandem of countercurrent separation and qHNMR enables gravimetric analyses: absolute quantitation of the Rhodiola rosea metabolome. Anal. Chem. 93: 11701–11709.
2040. Sakata, N., Ishiga, T., Masuo, S., Hashimoto, Y., and Ishiga, Y. (2021). Coronatine contributes to Pseudomonas cannabina pv. alisalensis virulence by overcoming both stomatal and apoplastic defenses in dicot and monocot plants. Mol. Plant-Microbe Interact. 34: 746–757.

一年次生阿見オリエンテーション,研究室セミナー,先週の輪読

茨城大学農学部は阿見キャンパスにありますが,一年次生は本部のある水戸キャンパスで勉強しています.二年次生以降で主な学生生活を送ることになる阿見キャンパスを訪問する阿見キャンパスオリエンテーションが毎年一年次生向けの授業科目「大学入門ゼミ」の一環として行われています.今年度は 6/12(日)に開催されました.研究室見学は阿見オリエンテーションのメインイベントになっていますので,生物制御化学研究室にも見学に来ていました.

先週の研究室セミナーでは化学生態学研究室修士 2 年生の学生が下記の論文を紹介しました.
Dixit, S. et al. β-Cyanoalanine synthase protects mites against Arabidopsis defenses. Plant Physiol. in press.

先週の輪読では下記の論文を取り上げました.
2032. Li, R., Zhang, J., Li, Z., Peters, R.J., and Yang, B. (2022). Dissecting the labdane-related diterpenoid biosynthetic gene clusters in rice reveals directional cross-cluster phytotoxicity. New Phytol. 233: 878–889.
2033. Shinya, T. et al. Chitooligosaccharide elicitor and oxylipins synergistically elevate phytoalexin production in rice. Plant Mol. Biol. in press.
2034. Yan, N. et al. (2022). Chromosome-level genome assembly of Zizania latifolia provides insights into its seed shattering and phytocassane biosynthesis. Commun. Biol. 5: 36.

研究室セミナー & 今週の輪読

今週から研究室セミナーでの文献紹介が始まりました.今週は生物制御化学研究室修士 2 年生の学生が下記の論文を紹介しました.
Lu, X.-L., Qiu, Y., Yang, B., He, H., and Gao, S. (2021). Asymmetric total synthesis of (+)-xestoquinone and (+)-adociaquinones A and B. Chem. Sci. 12: 4747–4752.

今週の輪読では下記の論文を取り上げました.
2029. Fang, H. et al. (2021). A monocot-specific hydroxycinnamoylputrescine gene cluster contributes to immunity and cell death in rice. Sci. Bull. 66: 2381–2393.
2030. Ji, R. et al. (2021). Vitellogenin from planthopper oral secretion acts as a novel effector to impair plant defenses. New Phytol. 232: 802–817.
2031. Komkleow, S., Niyomploy, P., and Sangvanich, P. (2021). Maldi-mass spectrometry imaging for phytoalexins detection in RD6 Thai rice. Appl. Biochem. Microbiol. 57: 533–541.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室修士 1 年の学生が下記の論文を紹介しました.
Mostafa, A.A., El-Rahman, S.N.A., Shehata, S., Abdallah, N.A., and Omar, H.S. (2021). Assessing the effects of a novel biostimulant to enhance leafminer resistance and plant growth on common bean. Sci. Rep. 11: 20020.

今週の輪読では下記の論文を取り上げました.
1974. Negrel, J., Klinguer, A., and Adrian, M. (2021). In vitro inhibition of shikimate hydroxycinnamoyltransferase by acibenzolar acid, the first metabolite of the plant defence inducer acibenzolar-S-methyl. Plant Physiol. Biochem. 163: 119–127.
1975. Ponce, G.E., Fuse, M., Chan, A., and Connor, E.F. (2021). The localization of phytohormones within the gall-inducing insect Eurosta solidaginis (Diptera: Tephritidae). Arthropod-Plant Interact. 15: 375–385.
1976. Xu, Y. et al. (2021). Plant volatile organic compound (E)-2-hexenal facilitates Botrytis cinerea infection of fruits by inducing sulfate assimilation. New Phytol. 231: 432–446.
1977. Tian, H. et al. (2021). Three LysM effectors of Zymoseptoria tritici collectively disarm chitin-triggered plant immunity. Mol. Plant Pathol. 22: 683–693.
1978. Schulz, R., Bub, S., Petschick, L.L., Stehle, S., and Wolfram, J. (2021). Applied pesticide toxicity shifts toward plants and invertebrates, even in GM crops. Science 372: 81–84.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは生物制御化学研究室修士 1 年の学生が下記の論文を紹介しました.
Zheng, K., and Hong, R. (2020). Postulated biogenesis-guided total synthesis and structural revision of 2,18-seco-lankacidinol A. Org. Lett. 22: 3785–3788.

今週の輪読では下記の論文を取り上げました.

1969. Xu, B. et al. (2021). GABA signalling modulates stomatal opening to enhance plant water use efficiency and drought resilience. Nat. Commun. 12: 1952.
1970. Sittmann, J. et al. (2021). Bacterial diketopiperazines stimulate diatom growth and lipid accumulation. Plant Physiol. 186: 1159–1170.
1971. Chavana, J. et al. (2021). Local adaptation to continuous mowing makes the noxious weed Solanum elaeagnifolium a superweed candidate by improving fitness and defense traits. Sci. Rep. 11: 6634.
1972. Łużny, M., Tronina, T., Kozłowska, E., Kostrzewa-Susłow, E., and Janeczko, T. (2021). Biotransformation of 5,7-methoxyflavones by selected entomopathogenic filamentous fungi. J. Agric. Food Chem. 69: 3879–3886.
1973. Kim, S.S., and Sattely, E.S. (2021). Dirigent proteins guide asymmetric heterocoupling for the synthesis of complex natural product analogues. J. Am. Chem. Soc. 143: 5011–5021.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室学部 4 年の学生が下記の論文を紹介しました.
Asseck, L.Y. et al. (2021). Endoplasmic reticulum membrane receptors of the GET pathway are conserved throughout eukaryotes. Proc. Natl. Acad. Sci. U. S. A. 118: e2017636118.

今週の輪読では下記の論文を取り上げました.

1956. Liu, Y. et al. (2021). Analysis of secondary metabolites induced by yellowing process for understanding rice yellowing mechanism. Food Chem. 342: 128204.
1957. Yao, J. et al. (2021). Desmethyl butenolides are optimal ligands for karrikin receptor proteins. New Phytol. 230: 1003–1016.
1958. Fu, R. et al. (2021). Versatility in acyltransferase activity completes chicoric acid biosynthesis in purple coneflower. Nat. Commun. 12: 1563.
1959. Yuan, M. et al. (2021). Pattern-recognition receptors are required for NLR-mediated plant immunity. Nature 592: 105–109.
1960. Ngou, B.P.M., Ahn, H.-K., Ding, P., and Jones, J.D.G. (2021). Mutual potentiation of plant immunity by cell-surface and intracellular receptors. Nature 592: 110–115.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは生物制御化学研究室学部 4 年の学生が下記の論文を紹介しました.
Takahashi, S. et al. (2021). Unified enantioselective total synthesis of 3,6-dioxygenated diketopiperazine natural products, diatretol and lepistamides A, B and C. Tetrahedron Lett. 67: 152895.

今週の輪読では下記の論文を取り上げました.

1952. Winkelmüller, T.M. et al. (2021). Gene expression evolution in pattern-triggered immunity within Arabidopsis thaliana and across Brassicaceae species. Plant Cell 33: 1863–1887.
1953. Chen, J.-F. et al. (2021). Fine-tuning roles of Osa-miR159a in rice immunity against Magnaporthe oryzae and development. Rice 14: 26.
1954. Divya, D., Sahu, N., Reddy, P.S., Nair, S., and Bentur, J.S. (2021). RNA-sequencing reveals differentially expressed rice genes functionally associated with defense against BPH and WBPH in RILs derived from a cross between RP2068 and TN1. Rice 14: 27.
1955. Kasei, A. et al. (2021). Comparative analysis of the extradiol ring-cleavage dioxygenase LigB from Arabidopsis and 3,4-dihydroxyphenylalanine dioxygenase from betalain-producing plants. Plant Cell Physiol. 62: 732–740.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは生物制御化学研究室学部 4 年の学生が下記の論文を紹介しました.
Mao, H., Wang, P.-M., and Xu, J. (2021). Total synthesis of pleosporol A and its stereoisomers. Tetrahedron 81: 131913.

今週の輪読では下記の論文を取り上げました.
1948. Nakayasu, M. et al. (2021). Tomato roots secrete tomatine to modulate the bacterial assemblage of the rhizosphere. Plant Physiol. 186: 270–284.
1949. Wang, C., Crocoll, C., Agerbirk, N., and Halkier, B.A. (2021). Engineering and optimization of the 2-phenylethylglucosinolate production in Nicotiana benthamiana by combining biosynthetic genes from Barbarea vulgaris and Arabidopsis thaliana. Plant J. 106: 978–992.
1950. Nabity, P.D., Barron-Gafford, G.A., and Whiteman, N.K. (2021). Intraspecific competition for host resources in a parasite. Current Biology 31: 1344–1350.e3.
1951. Liu, M., Li, Y.-J., Zhu, Y.-X., Sun, Y., and Wang, G.-F. (2021). Maize nicotinate N-methyltransferase interacts with the NLR protein Rp1-D21 and modulates the hypersensitive response. Mol. Plant Pathol. 22: 564–579.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは生物制御化学研究室学部 4 年の学生が下記の論文を紹介しました.
Mendoza, M., Rao, N., Tran, U., Castaneda, C., and Billingsley, K.L. (2019). The total synthesis of (–)-indolactam I. Tetrahedron 75: 4337–4342.

今週の輪読では下記の論文を取り上げました.

1944. Lopez-Moya, F. et al. (2021). Chitosan inhibits septin-mediated plant infection by the rice blast fungus Magnaporthe oryzae in a protein kinase C and Nox1 NADPH oxidase-dependent manner. New Phytol. 230: 1578–1593.
1945. Gesteiro, N., Butrón, A., Estévez, S., and Santiago, R. (2021). Unraveling the role of maize (Zea mays L.) cell-wall phenylpropanoids in stem-borer resistance. Phytochemistry 185: 112683.
1946. Wang, H. et al. (2021). Suppression of rice miR168 improves yield, flowering time and immunity. Nat. Plants 7: 129–136.
1947. Liu, H. et al. (2021). Evidence for the plant recruitment of beneficial microbes to suppress soil-borne pathogens. New Phytol. 229: 2873–2885.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室学部 4 年の学生が下記の論文を紹介しました.
Ma, Q.-J. et al. (2019). An apple sucrose transporter MdSUT2.2 is a phosphorylation target for protein kinase MdCIPK22 in response to drought. Plant Biotechnol. J. 17: 625–637.
今週の輪読では下記の論文を取り上げました.

1937. Kumar, G. et al. (2021). Exogenous serotonin and melatonin regulate dietary isoflavones profoundly through ethylene biosynthesis in soybean [Glycine max (L.) Merr.]. J. Agric. Food Chem. 69: 1888–1899.
1938. Burdziej, A. et al. (2021). Three types of elicitors induce grapevine resistance against downy mildew via common and specific immune responses. J. Agric. Food Chem. 69: 1781–1795.
1939. Ube, N. et al. (2021). Identification of methoxylchalcones produced in response to CuCl2 treatment and pathogen infection in barley. Phytochemistry 184: 112650.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室学部 4 年の学生が下記の論文を紹介しました.
Hao, D. et al. (2021). The RING E3 ligase SDIR1 destabilizes EBF1/EBF2 and modulates the ethylene response to ambient temperature fluctuations in Arabidopsis. Proc. Natl. Acad. Sci. U. S. A. 118: e2024592118.

今週の輪読では下記の論文を取り上げました.

1932. Uenoyama, R. et al. (2021). The characteristic response of domestic cats to plant iridoids allows them to gain chemical defense against mosquitoes. Sci. Adv. 7: eabd9135.
1933. Fujimoto, T., Abe, H., Mizukubo, T., and Seo, S. (2021). Phytol, a constituent of chlorophyll, induces root-knot nematode resistance in arabidopsis via the ethylene signaling pathway. Mol. Plant-Microbe Interact. 34: 279–285.
1934. Rasool, S. et al. (2021). Seed inoculations with entomopathogenic fungi affect aphid populations coinciding with modulation of plant secondary metabolite profiles across plant families. New Phytol. 229: 1715–1727.
1935. Bakhtiari, M., Glauser, G., Defossez, E., and Rasmann, S. (2021). Ecological convergence of secondary phytochemicals along elevational gradients. New Phytol. 229: 1755–1767.
1936. Matsumoto, H. et al. (2021). Bacterial seed endophyte shapes disease resistance in rice. Nat. Plants 7: 60–72.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室修士 2 年の学生が下記の論文を紹介しました.
Zhang, C. et al. (2021). Involvement of chemosensory protein BodoCSP1 in perception of host plant volatiles in Bradysia odoriphaga. J. Agric. Food Chem. 69: 10797–10806.

今週の輪読では下記の論文を取り上げました.

1928. Pandey, B.K. et al. (2021). Plant roots sense soil compaction through restricted ethylene diffusion. Science 371: 276–280.
1929. Yokoyama, R., de Oliveira, M.V.V., Kleven, B., and Maeda, H.A. (2021). The entry reaction of the plant shikimate pathway is subjected to highly complex metabolite-mediated regulation. Plant Cell 33: 671–696.
1930. Richter, A. et al. (2021). Indole-3-glycerolphosphate synthase, a branchpoint for the biosynthesis of tryptophan, indole, and benzoxazinoids in maize. Plant J. 106: 245–257.
1931. Guo, Y., Lv, J., Zhao, Q., Dong, Y., and Dong, K. (2020). Cinnamic acid increased the incidence of Fusarium wilt by increasing the pathogenicity of Fusarium oxysporum and reducing the physiological and biochemical resistance of faba bean, which was alleviated by intercropping with wheat. Front. Plant Sci. 11: 1928.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは生物制御化学研究室修士 2 年の学生が下記の論文を紹介しました.
Abeysinghe, G. et al. (2020). Fungal mycelia and bacterial thiamine establish a mutualistic growth mechanism. Life Sci. Alliance 3: e202000878.

今週の輪読では下記の論文を取り上げました.

1923. Thitz, P. et al. (2021). Genetic modification of the flavonoid pathway alters growth and reveals flexible responses to enhanced UVB – Role of foliar condensed tannins. Plant-Environ. Interact. 2: 1–15.
1924. Liu, T., Shi, J., Li, M., Ye, X., and Qi, H. (2021). Trehalose triggers hydrogen peroxide and nitric oxide to participate in melon seedlings oxidative stress tolerance under cold stress. Environ. Exp. Bot. 184: 104379.
1925. Liu, M. et al. (2021). Auxilin-like protein MoSwa2 promotes effector secretion and virulence as a clathrin uncoating factor in the rice blast fungus Magnaporthe oryzae. New Phytol. 230: 720–736.
1926. Dulchavsky, M., Clark, C.T., Bardwell, J.C.A., and Stull, F. (2021). A cytochrome c is the natural electron acceptor for nicotine oxidoreductase. Nat. Chem. Biol. 17: 344–350.
1927. Li, J. et al. (2021). Controlled hydroxylations of diterpenoids allow for plant chemical defense without autotoxicity. Science 371: 255–260.

研究室セミナー & 今週の輪読

今週から研究室セミナーの文献紹介が始まりました.今週は生物制御化学研究室修士 2 年の学生が下記の論文を紹介しました.
Kanda, Y. et al. (2020). Two-phase synthesis of Taxol. J. Am. Chem. Soc. 142: 10526–10533.

今週の輪読では下記の論文を取り上げました.

1918. Löffler, L.E., Wirtz, C., and Fürstner, A. (2021). Collective total synthesis of casbane diterpenes: one strategy, multiple targets. Angew. Chem. Int. Ed. 60: 5316–5322.
1919. Li, W. et al. (2021). Overexpression of the homoterpene synthase gene, OsCYP92C21, increases emissions of volatiles mediating tritrophic interactions in rice. Plant Cell Environ. 44: 948–963.
1920. Liang, J. et al. (2021). Rice contains a biosynthetic gene cluster associated with production of the casbane-type diterpenoid phytoalexin ent-10-oxodepressin. New Phytol. 231: 85–93.
1921. Bai, Y. et al. (2021). Modulation of Arabidopsis root growth by specialized triterpenes. New Phytol. 230: 228–243.
1922. Liu, M.-T., Zhao, J., and Li, S.-P. (2021). Application of smartphone in detection of thin-layer chromatography: dase of Salvia miltiorrhiza. J. Chromatogr. A 1637: 461826.

研究質セミナー & 今週の輪読

今週の研究室セミナーでは化学生態学研究室の 4 年生が下記の論文を紹介しました.夏休み前のセミナーは今週が最後です.
Steinbrenner, A.D. et al. (2020). A receptor-like protein mediates plant immune responses to herbivore-associated molecular patterns. Proc. Natl. Acad. Sci. U. S. A. 117: 31510–31518.

今週の輪読では下記の論文を取り上げました.

1877. Dash, M. et al. (2021). A rice root-knot nematode Meloidogyne graminicola-resistant mutant rice line shows early expression of plant-defence genes. Planta 253: 108.
1878. Malka, O. et al. (2020). Glucosylation prevents plant defense activation in phloem-feeding insects. Nat. Chem. Biol. 16: 1420–1426.

機器分析実験,研究室セミナー,今週の輪読

先週の金曜日から長谷川と化学生態学研究室の鈴木義人先生が担当している食生命科学科 3 年生向けの学生実験「機器分析実験」が始まりました.今日で日程の半分(全 8 回中 4 回)を終了しましたが,明日から連休に入るので,後半戦は来週月曜日からスタートです.ここまでは試料調整が中心で TA の大学院生の皆さんのご協力のおかげで概ね順調に進んでいますが,来週はいよいよ機器を使った分析が始まります.とにかく機器のトラブルがないことを祈っています.

今週の研究室セミナーでは生物制御化学研究室の
4 年生 2 名が下記の論文を紹介しました.
Kumaraswamy, G., Ramesh, V., and Vijaykumar, S. (2021). Enantioselective total synthesis of sesquiterpenoid phellilane L and its diastereomer. Tetrahedron 87: 132110.
Lee, D. et al. (2019). Total synthesis of 4-epi-atpenin A5 as a potent nematode complex II inhibitor. Tetrahedron 75: 3178–3185.

今週の輪読では下記の論文を取り上げました.

1875. Su, Q. et al. (2020). Defence priming in tomato by the green leaf volatile (Z)-3-hexenol reduces whitefly transmission of a plant virus. Plant Cell Environ. 43: 2797–2811.
1876. Han, K. et al. (2020). Rice stripe virus coat protein induces the accumulation of jasmonic acid, activating plant defence against the virus while also attracting its vector to feed. Mol. Plant Pathol. 21: 1647–1653.

研究室セミナー

先週の研究室セミナーは都合により休みになったので,今日は二週間ぶりのセミナーでした.文献紹介は生物制御化学研究室の 4 年生の学生さんの担当で,下記の論文の紹介がありました.
Li, T.-Z., Geng, C.-A., and Chen, J.-J. (2019). First total synthesis of rhuscholide A, glabralide B and denudalide. Tetrahedron Lett. 60: 151059.

研究室セミナー

今週の文献紹介は化学生態学研究室の 4 年生の学生さんの担当で,下記の論文の紹介がありました.
Huang, C.-Y. et al. (2021). A stable antimicrobial peptide with dual functions of treating and preventing citrus Huanglongbing. Proc. Natl. Acad. Sci. U. S. A. 118: e2019628118.

研究室セミナー

今週の文献紹介は化学生態学研究室の 4 年生の学生さんの担当で,下記の論文の紹介がありました.
Nie, J. et al. (2021). Transcriptional control of local auxin distribution by the CsDFB1-CsPHB module regulates floral organogenesis in cucumber. Proc. Natl. Acad. Sci. U. S. A. 118: e2023942118.

研究室セミナー

2 クォーターの生物制御化学研究室・化学生態学研究室の合同セミナーは毎週火曜日の午前中に開催です.今週の文献紹介は化学生態学研究室の M1 の学生さんの担当で,下記の論文の紹介がありました.
Pokhare, S.S. et al. (2020). Signatures of adaptation to a monocot host in the plant-parasitic cyst nematode Heterodera sacchari. Plant J. 103: 1263–1274.

研究室セミナー & 今週の輪読

今週の研究室セミナーの文献紹介の担当は生物制御化学研究室の M1 の学生さんで,下記の論文が紹介されました.
Herlé, B., Späth, G., Schreyer, L., and Fürstner, A. (2021). Total synthesis of mycinolide IV and path-scouting for aldgamycin N. Angew. Chem. Int. Ed. 60: 7893–7899.

今週の輪読では下記の論文を取り上げました.

1863. Yang, F. et al. (2020). Jasmonoyl-L-isoleucine and allene oxide cyclase-derived jasmonates differently regulate gibberellin metabolism in herbivory-induced inhibition of plant growth. Plant Sci. 300: 110627.
1864. He, Y. et al. (2020). The OsGSK2 kinase integrates brassinosteroid and jasmonic acid signaling by interacting with OsJAZ4. Plant Cell 32: 2806.

研究室セミナー & 今週の輪読

今週の研究室セミナーの文献紹介の担当は化学生態学研究室の M2 の学生さんで,下記の論文が紹介されました.
Chen, Y. et al. (2020). Rice GROWTH-REGULATING FACTOR7 modulates plant architecture through regulating GA and indole-3-acetic acid metabolism. Plant Physiol. 184: 393–406.

今週の輪読では下記の論文を取り上げました.

1860. Volkov, A.G., and Shtessel, Y.B. (2020). Underground electrotonic signal transmission between plants. Commun. Integr. Biol. 13: 54–58.
1861. Mou, W. et al. (2020). Ethylene-independent signaling by the ethylene precursor ACC in Arabidopsis ovular pollen tube attraction. Nat. Commun. 11: 4082.
1862. Li, J., Liu, J.-K., and Wang, W.-X. (2020). GIAO 13C NMR calculation with sorted training sets improves accuracy and reliability for structural assignation. J. Org. Chem. 85: 11350–11358.

研究室セミナー & 今週の輪読

今週の研究室セミナーでは生物制御化学研究室の M2 の学生さんが下記の論文の紹介を行いました.
Gorman, Z. et al. (2020). Green leaf volatiles and jasmonic acid enhance susceptibility to anthracnose diseases caused by Colletotrichum graminicola in maize. Mol. Plant Pathol. 21: 702–715.

今週の輪読では下記の論文を取り上げました.
1856. Dressano, K. et al. (2020). Dynamic regulation of Pep-induced immunity through post-translational control of defence transcript splicing. Nat. Plants 6: 1008–1019.
1857. Kihika, R. et al. (2020). Compounds associated with infection by the root-knot nematode, Meloidogyne javanica, influence the ability of infective juveniles to recognize host plants. J. Agric. Food Chem. 68: 9100–9109.
1858. Wang, W. et al. (2020). Structural basis of salicylic acid perception by Arabidopsis NPR proteins. Nature 586: 311–316.
1859. Liu, Y. et al. (2020). Airborne fungus-induced biosynthesis of anthocyanins in Arabidopsis thaliana via jasmonic acid and salicylic acid signaling. Plant Sci. 300: 110635.

研究室セミナー

5/18 のブログに書いたように現在研究室は大学の新型コロナウイルス感染者クラスターの発生にによる学生・教職員のキャンパス入構制限のために学部長の戸嶋先生を除いてほぼ全員が在宅学習・勤務中になっています.
化学生態学研究室と合同で行っているセミナーはこの事態になる前から昨年 4 月以降ずっとオンライン開催でしたので,このような事態になってもそのままオンラインで継続です.
本日のセミナーでは今年度初めての論文紹介があり,M2 の学生が下記の論文について発表しました.
Kato, S. et al. (2021). Total synthesis and complete configurational assignment of amphirionin-2. Chem. Sci. 12: 872–879.

年間計画発表会 & 今週の輪読

今週の木曜日には修士 1 年生と学部 4 年生の修士論文と卒業論文研究の年間計画発表会が生物制御化学研究室と化学生態学研究室合同で開催されました.修士 2 年は先週中間発表会を開催済みです.今年度の M1 2 名,4 年生は 6 名です.皆さん意欲的な計画で,計画通りに研究が進めば修論・卒論だけでなく原著論文もバンバン出そうなのですが,そこは計画通りにいかないのが研究の難しくも面白いところです.

今週の輪読では下記の論文を取り上げました.
1850.
Zhang, X. et al. (2020). Metabolite profiling for model cultivars of wheat and rice under ozone pollution. Environ. Exp. Bot. 179: 104214.
1851.
Miller, G.P. et al. (2020). The biosynthesis of the anti-microbial diterpenoid leubethanol in Leucophyllum frutescens proceeds via an all-cis prenyl intermediate. Plant J. 104: 693–705.

修士 2 年生中間発表会

茨城大学大学院農学研究科では修士 2 年生は 5 月に中間発表を行うことが義務付けられています.以前から大体どこの研究室でも年度始めには中間発表や年間計画発表などを行っていましたが,2 年前から研究科として正式に修士 2 年進級後に中間発表を行うことが義務付けられました.

今日は生物制御化学研究室と化学生態学研究室合同で,所属する 3 名の修士 2 年生の中間発表会が開催されました.このご時世ですので,発表は Microsoft Teams を用いたオンラインでの開催となりました.あと一年近くあるというように感じていても,修論研究のために実質的に実験を進められるのは半年ちょっとなので,ここから修論提出までは案外あっという間に過ぎてしまいます.修論だけではなく,できれば原著論文の投稿ができるように残りの時間を頑張っていただきたいと思います.